China SHENGYU® Disperse Fluorescent Blue S-R 300% - High-Strength Dye from Reliable Suppliers & Factory
Product Attributes
25 kg / Plastic Bag inside Carton
| Product Name | O.W.F(%) | Classif. | HTHP | Thermosol | Printing | Carrier | Light | Washing | Sublimation | Rubbing | PH Range |
| Blue S-R 300% | 1 | S | ◎ | ○ | ○ | × | 4 | 4-5 | 4 | 4-5 | 4-6 |
| Dye Group | Suitability |
| S(H): High Energy | ◎: Very Suitable |
| SE: Medium Energy | ○: Suitable |
| E: Low Energy | △: Limited Suitable |
| ×: Not Suitable |
Product Description
SHENGYU® Disperse Fluorescent Blue S-R 300% is an ultra-high concentration fluorescent disperse dye specifically designed for polyester fabrics, delivering a high-impact, brilliant, and energetic electric blue shade. As a key member of Shengyu's high-performance series, it is engineered for modern textiles requiring extreme visual pop, such as fashion sportswear, high-visibility safety gear, and functional activewear.
This dye offers exceptional color yield and exhaust rates, achieving deep saturation even at standard depths. Its superior dispersion and leveling properties ensure excellent uniformity and high reproducibility, making it an ideal choice for demanding industrial dyeing processes where long-lasting vibrancy is essential.
Key Features and Performance
- 💡 Brilliant Fluorescent Glow: Delivers a high-purity, luminous blue shade that provides outstanding visual brightness and a modern aesthetic.
- ⚡ Ultra-High Concentration: The 300% strength ensures rich, saturated color with lower dosage requirements compared to standard dyes.
- 🛡️ Reliable Fastness Properties: Maintains solid washing fastness (4-5) and excellent rubbing fastness (4-5) for long-lasting color stability.
- 🔬 Superior Dispersion & Leveling: Optimized for HTHP processes to ensure uniform uptake and prevent specking or unevenness in large-scale production.
- 🔁 High Reproducibility: Engineered for consistent batch-to-batch results, significantly reducing the risk of off-shades in industrial environments.
- 🎯 Wide Application Range: Remains stable within a pH range of 4-6, making it fully compatible with standard polyester dyeing and finishing setups.
Technical Support
We have professional technical team which support target samples testing from customers around the World. Counter samples will be provided after evaluation. Meanwhile customization service is available in our factory. What's more, we can also provide pre shipment samples for new customers during our 1st cooperation.
Package and Shipment
Packing: 25 kg, 50 kg, 125 kg plastic barrels with pallets

Whether you have your own freight forwarder or you would like us to organize shipment; whether you require delivery FOB to a port in China or CIF to a port near you, we are happy to quote and supply whichever way you choose. Please feel free to discuss all options with us.
Our delivery time: Within 20 days after receipt of T/T or L/C bank copy.













